RT info:eu-repo/semantics/article T1 unexpected toxicity of green tea polyphenols in combination with the sambucus ril ebulin A1 Rojo, M. Ángeles A1 Garrosa García, Manuel A1 Jiménez López, María del Pilar A1 Girbés, Tomás A1 Garcia-Recio, Verónica A1 Cordoba-Diaz, Manuel A1 Cordoba-Diaz, Damián K1 green tea polyphenols K1 Sambucus ebulus K1 ebulin f K1 RIP K1 ribosome-inactivating protein K1 ricin AB The safety of concentrated food complements intake is a major health concern. It has been well established that green tea polyphenols (GTPs) consumption promotes healthy effects. However, the ingestion of large amounts of GTPs is a matter of controversy due to reported adverse effects. We underwent a preliminary exploration of the effects of the oral administration of a standardized concentrated GTPs preparation on mice which suffered from reversible intestinal derangement promoted by sublethal amounts of the antiribosomal lectin ebulin f from dwarf elder (Sambucus ebulus L.). Neither independent oral administration of 30 mg/kg body weight Polyphenon 60 nor intraperitoneal administration of 2.5 mg/kg body weight ebulin f triggered lethal toxicity. In contrast, the simultaneous administration of these same doses of both Polyphenon 60 and ebulin f triggered an important and unexpected synergistic toxic action featured by the biphasic reduction of weight, which continued after eight days, reaching a reduction of 40%. Lethality appeared 2 days after the onset of the combined treatment and reached more than 50% after 10 days. PB MDPI SN 2072-6651 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/64333 UL https://uvadoc.uva.es/handle/10324/64333 LA eng NO Toxins 2020,12,542-553 NO Producción Científica DS UVaDOC RD 27-dic-2024